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53033933 = 137387109
BaseRepresentation
bin1100101001001…
…1101111001101
310200210101212202
43022103233031
5102034041213
65132411245
71212531611
oct312235715
9120711782
1053033933
1127a331a7
1215916b25
13acab334
147087341
1549c8b58
hex3293bcd

53033933 has 4 divisors (see below), whose sum is σ = 53421180. Its totient is φ = 52646688.

The previous prime is 53033927. The next prime is 53033957. The reversal of 53033933 is 33933035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45995524 + 7038409 = 6782^2 + 2653^2 .

It is a cyclic number.

It is not a de Polignac number, because 53033933 - 216 = 52968397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53033896 and 53033905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53033983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193418 + ... + 193691.

It is an arithmetic number, because the mean of its divisors is an integer number (13355295).

Almost surely, 253033933 is an apocalyptic number.

It is an amenable number.

53033933 is a deficient number, since it is larger than the sum of its proper divisors (387247).

53033933 is a wasteful number, since it uses less digits than its factorization.

53033933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387246.

The product of its (nonzero) digits is 10935, while the sum is 29.

The square root of 53033933 is about 7282.4400443807. The cubic root of 53033933 is about 375.7087231277.

Adding to 53033933 its reverse (33933035), we get a palindrome (86966968).

The spelling of 53033933 in words is "fifty-three million, thirty-three thousand, nine hundred thirty-three".

Divisors: 1 137 387109 53033933